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1、专科大学英语1第一学期期末考试(A卷)PartIIReadingComprehension(30%)Directions:Therearefourpassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwith
2、asinglelinethroughthecenter.PassageOneScienceisnotasetofunquestionableresultsbutawayofunderstandingtheworldaroundus.Itsrealworkisslow.Thescientificmethod,asmanyofuslearnedinschool,isagradualprocessthatbeginswithapurposeorproblemorquestiontobeanswered.Itincludesalistofmaterials,apro
3、ceduretofollow,asetofobservationstomakeand,finally,conclusionstoreach.Inmedicine,whenanewdrugisproposedthatmightcureorcontroladisease,itisfirsttestedonalargerandomgroupofpeople,andtheirreactionsarethencomparedwiththoseofanotherrandomgroupnotgiventhedrug.Allreactionsinbothgroupsarec
4、arefullyrecordedandcompared,andthedrugisevaluated.Allofthistakestimeandpatience.It’stheresultofcourse,thatmakesthebestnews—nottheyearsofquietworkthatcharacterizethebulkofscientificinquiry.Afteranexperimentisconcludedoranobservationismade,theresultcontinuestobeexaminedcritically.Whe
5、nitissubmittedforpublication,itgoestoagroupofthescientist’scolleagues,whoreviewthework.Einsteinwasrightwhenhesaid:“Noamountofexperimentationcaneverprovemeright,asingleexperimentcanatanytimeprovemewrong.”InAugust1996,NASAannouncedthediscoveryinAntarcticaofameteorite（流星）fromMarsthatm
6、ightcontainevidenceofancientlifeonanotherworld.AsPresidentClintonsaidthatday,thepossibilitythatlifeexistedonMarsbillionsofyearsagowaspotentiallyoneofthegreatdiscoveriesofourtime.Aftertheexcitementworedownandinitialpaperswerepublished,otherresearchersbeganlookingatsamplesfromthesame
7、meteorite.Someconcludedthatthe“evidenceoflife”wasmostlycontaminationfromAntarcticiceorthattherewasnothingorganicatallintherock.Wasthisafailureofscience,assomenewsreportstrumpeted?No!Itwasagoodexampleofthescientificmethodworkingthewayitissupposedto.Scientistsspendyearsonresearch,ann
8、ouncetheirfindings,andthes
